Elders are culpable because of the two witness rule is right in their book.
Grandmas who do not know one bit of the truth about JWs are not culpable as they have been lied to their whole life. Now, if grandma found out the truth and kept being a JW, then she's guilty.
When you join the Bloods and the Crips you know you are joining a murderous gang.
I'm sure it gets a lot more complicated, but it would be a great speech for a nosy elder. Especially with p72 (?) (2-witness rule) incorporated in it.